An oil well pressure measuring device

Abstract

The utility model discloses an oil well pressure measuring device relates to petroleum drilling detection technical field, and the utility model discloses a protection shell is provided with formation tester at the bottom of protection shell, and the side wall four corners of protection shell all have and insert the sliding connection of card bar, and the rod end fixedly connected with the boss of card bar, and the bottom fixedly connected with the stud of boss, and the below of protection shell is provided with horizontal cylinder, and the top surface fixedly connected with the tab of horizontal cylinder, and the end surface fixedly connected with the vertical cylinder of horizontal cylinder, and the top surface fixedly connected with the boss of vertical cylinder, and the side wall rotationally covers the boss of boss, and the top surface fixedly connected with the hexagonal knob of boss, and the top surface middle part of hexagonal knob is provided with the threaded hole of penetration, and the threaded hole corresponds with the stud and cooperates, the utility model discloses can measure and record the pressure in the oil well, and can protect formation tester, avoid when going down the well, and formation tester is damaged due to the collision, thereby ensuring the normal operation of measurement operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil drilling detection, specifically to an oil well pressure measuring device. BACKGROUND

[0002] Land and offshore oil exploration has proved that the existence of abnormal geologic pressure is universal, high-pressure layers are more likely to exist than low-pressure layers, and the range of geologic pressure changes is large, which greatly affects the safety of oil drilling, and the current oil well pressure measuring device is mostly measured by a formation tester when in use, and the formation tester is damaged by collision when being lowered into the well, which may result in a large error between the measured data and the actual situation, affecting the data accuracy, and the oil well pressure measuring device is provided to solve the above problems. UTILITARY MODEL

[0003] In order to solve the problem that the current oil well pressure measuring device is damaged by collision when in use, which may result in a large error between the measured data and the actual situation, the utility model aims to provide an oil well pressure measuring device.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: an oil well pressure measuring device, comprising a protective shell, a formation tester is arranged on the bottom surface of the protective shell, a clamping rod is slidably connected to each corner of the side wall of the protective shell, a convex seat is fixedly connected to the rod end of the clamping rod, a stud is fixedly connected to the bottom surface of the convex seat, a horizontal cylinder is arranged below the protective shell, a convex plate is fixedly connected to the top surface of the horizontal cylinder, a vertical cylinder is fixedly connected to the end surface of the horizontal cylinder, a convex table is fixedly connected to the top surface of the vertical cylinder, a convex sleeve is rotatably sleeved on the side wall of the convex table, a hexagonal knob is fixedly connected to the top surface of the convex sleeve, a threaded hole is formed in the top surface of the hexagonal knob, and the threaded hole corresponds to and cooperates with the stud.

[0005] Preferably, the top surface of the protective shell is provided with a cavity, a storage battery is placed in the cavity, and an end cover is detachably arranged at the cavity opening of the cavity. The formation tester is a testing device lowered into the well through a cable. During the testing process, various pressure data of the tested formation can be continuously recorded on the ground. The formation tester can be protected by the protective shell to avoid damage caused by collision when being lowered into the well.

[0006] Preferably, the axis of the stud is perpendicular to the axis of the clamping rod, the side wall of the protective shell is provided with a clamping hole, the clamping rod corresponds to and matches the clamping hole, the top surface of the protective shell is fixedly connected with a connecting disc at four corners, the outer side wall of the protective shell is provided with a notch, the top surface of the protective shell and inside the notch are threadedly connected with a fastening knob, the rod end of the fastening knob corresponds to the clamping rod, when the formation tester is installed in the protective shell, the clamping rod is inserted into the clamping hole, the fastening knob is screwed, the rod end of the fastening knob is in close contact with the clamping rod, the clamping rod is fixedly positioned, and thus the installation of the clamping rod is completed.

[0007] Preferably, the axis of the stud is perpendicular to the axis of the clamping rod, the side wall of the protective shell is provided with a clamping hole, the clamping rod corresponds to and matches the clamping hole, the top surface of the protective shell is fixedly connected with a connecting disc at four corners, the outer side wall of the protective shell is provided with a notch, the top surface of the protective shell and inside the notch are threadedly connected with a fastening knob, the rod end of the fastening knob corresponds to the clamping rod, when the formation tester is installed in the protective shell, the clamping rod is inserted into the clamping hole, the fastening knob is screwed, the rod end of the fastening knob is in close contact with the clamping rod, the clamping rod is fixedly positioned, and thus the installation of the clamping rod is completed.

[0008] Compared with the prior art, the beneficial effects of the utility model lie in that the formation tester can measure and record the pressure in the oil well, the protective shell can protect the formation tester, the formation tester is prevented from being damaged due to collision when going down the well, the normal operation of the measurement operation is ensured, the clamping rod and the protruding plate can be positionally adjusted to clamp and fix different models of formation testers, and the applicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained by those skilled in the art without any creative effort.

[0010] Fig. 1 It is a whole structure schematic view of the present utility model.

[0011] Fig. 2 It is another whole structure schematic view of the present utility model.

[0012] Fig. 3This is a schematic diagram of the fit between the protrusion and the vertical cylinder of this utility model.

[0013] In the diagram: 1. Protective shell; 2. Chamber; 3. End cap; 4. Connecting plate; 5. Notch; 6. Fastening knob; 7. Locking hole; 8. Locking rod; 9. Boss; 10. Stud; 11. Horizontal cylinder; 12. Protruding plate; 13. Vertical cylinder; 14. Boss; 15. Annular groove; 16. Through port; 17. Hexagonal knob; 18. Threaded hole; 19. Protruding sleeve; 20. Guide ring; 21. Crossbar; 22. Formation tester. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figs. 1-3 As shown, this utility model provides an oil well pressure measuring device, including a protective shell 1. A formation tester 22 is provided on the bottom surface of the protective shell 1. A locking rod 8 is slidably connected to each of the four corners of the side wall of the protective shell 1. A boss 9 is fixedly connected to the end of the locking rod 8. A stud 10 is fixedly connected to the bottom surface of the boss 9. A horizontal cylinder 11 is provided below the protective shell 1. A protruding plate 12 is fixedly connected to the top surface of the horizontal cylinder 11. A vertical cylinder 13 is fixedly connected to the end face of the horizontal cylinder 11. A boss 14 is fixedly connected to the top surface of the vertical cylinder 13. A protruding sleeve 19 is rotatably sleeved on the side wall of the boss 14. A hexagonal knob 17 is fixedly connected to the top surface of the protruding sleeve 19. A threaded hole 18 is provided through the center of the top surface of the hexagonal knob 17. The threaded hole 18 corresponds to and cooperates with the stud 10.

[0016] The top surface of the protective shell 1 is provided with a chamber 2, and a storage battery is placed inside the chamber 2. The opening of the chamber 2 is detachably provided with an end cap 3.

[0017] By adopting the above technical solution, the formation tester 22 is a testing device lowered into the well via cable. During the testing process, various pressure data of the test formation can be continuously recorded on the surface. The protective shell 1 protects the formation tester 22 from damage caused by collisions during well lowering. The principle of the formation tester 22 is to lower it into the well to be tested via cable, and then use drill pipe or tubing to lower the testing tool into the upper part of the test formation, setting the packer to separate the lower and upper parts of the wellbore. The oil layer below the packer is connected to the drill pipe borehole space. Under the action of formation pressure, oil and gas enter the drill pipe. The formation tester 22 can be of the MDT type.

[0018] The axis of the stud 10 is perpendicular to the axis of the clamping rod 8, the side wall of the protective shell 1 is provided with a clamping hole 7, the clamping rod 8 corresponds to and matches the clamping hole 7, the top surface of the protective shell 1 is fixedly connected with a connecting disc 4 at four corners, the outer side wall of the protective shell 1 is provided with a notch 5, and the top surface of the protective shell 1 is threadedly connected with a fastening knob 6 inside the notch 5, and the rod end of the fastening knob 6 corresponds to the clamping rod 8.

[0019] By adopting the above technical scheme, the connecting disc 4 is used for fixedly connecting with the downhole device, when the formation tester 22 is matched and installed with the protective shell 1, the clamping rod 8 is inserted and installed in the clamping hole 7, the fastening knob 6 is screwed, the rod end of the fastening knob 6 is in close contact with the clamping rod 8, the clamping rod 8 can be limited and fixed, and thus the installation of the clamping rod 8 is completed.

[0020] The axis of the boss 14 coincides with the axis of the vertical cylinder 13, the axis of the vertical cylinder 13 is perpendicular to the axis of the horizontal cylinder 11, the top surface of the boss 14 is provided with a through hole 16, the size of the through hole 16 is larger than the size of the stud 10, the sleeve opening of the boss 19 is fixedly connected with a guide ring 20, the outer side wall of the boss 14 is provided with an annular groove 15, and the guide ring 20 corresponds to and is rotationally connected with the annular groove 15.

[0021] By adopting the above technical scheme, the cylinder opening of the horizontal cylinder 11 is slidably connected with a horizontal rod 21, when the formation tester 22 is matched and installed with the protective shell 1, the flange plate 12 is located below the formation tester 22, the hexagonal knob 17 is screwed by an external wrench, the hexagonal knob 17 can be rotated under the cooperation of the guide ring 20 and the annular groove 15, the vertical cylinder 13 is close to the boss 9 through the cooperation of the stud 10 and the threaded hole 18, and then the flange plate 12 is in close contact with the formation tester 22, so that the formation tester 22 can be limited and fixed, and the installation of the formation tester 22 is completed.

[0022] Working principle: when the formation tester 22 is used, the pressure in the oil well can be measured and recorded, when the formation tester 22 is used, the formation tester 22 can be protected by additionally installing the protective shell 1, and damage of the formation tester 22 caused by collision during downhole operation is avoided;

[0023] When the formation tester 22 is matched and installed with the protective shell 1, the clamping rod 8 is inserted and installed in the clamping hole 7, the fastening knob 6 is screwed, the rod end of the fastening knob 6 is in close contact with the clamping rod 8, the clamping rod 8 can be limited and fixed, and thus the installation of the clamping rod 8 is completed;

[0024] Then, the convex plate 12 is located below the formation tester 22, the hexagonal knob 17 is screwed by an external wrench, the guide ring 20 is matched with the annular groove 15, and the screw post 10 is matched with the threaded hole 18, so that the vertical cylinder 13 is close to the convex base 9, and then the convex plate 12 is in close contact with the formation tester 22, the formation tester 22 is limited and fixed, and the installation of the formation tester 22 is completed.

[0025] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. An oil well pressure measuring device, comprising a protective housing (1), characterized in that: The bottom surface of the protective shell (1) is provided with a formation tester (22). The four corners of the side wall of the protective shell (1) are slidably connected with locking rods (8). The rod end of the locking rod (8) is fixedly connected with a boss (9). The bottom surface of the boss (9) is fixedly connected with a stud (10). The bottom of the protective shell (1) is provided with a horizontal cylinder (11). The top surface of the horizontal cylinder (11) is fixedly connected with a protruding plate (12). The end face of the horizontal cylinder (11) is fixedly connected with a vertical cylinder (13). The top surface of the vertical cylinder (13) is fixedly connected with a boss (14). The side wall of the boss (14) is rotatably fitted with a protruding sleeve (19). The top surface of the protruding sleeve (19) is fixedly connected with a hexagonal knob (17). The center of the top surface of the hexagonal knob (17) is provided with a threaded hole (18). The threaded hole (18) corresponds to and cooperates with the stud (10).

2. The oil well pressure measuring device as described in claim 1, characterized in that, The top surface of the protective shell (1) is provided with a chamber (2), and a storage battery is placed inside the chamber (2). The opening of the chamber (2) is detachably provided with an end cap (3).

3. The oil well pressure measuring device as described in claim 1, characterized in that, The axis of the stud (10) is perpendicular to the axis of the locking rod (8). The side wall of the protective shell (1) is provided with a locking hole (7). The locking rod (8) corresponds to and cooperates with the locking hole (7).

4. The oil well pressure measuring device as described in claim 1, characterized in that, The protective shell (1) has a connecting plate (4) fixedly connected to each of the four corners of its top surface, and the outer side wall of the protective shell (1) has a notch (5).

5. The oil well pressure measuring device as described in claim 4, characterized in that, A fastening knob (6) is threadedly connected to the top surface of the protective shell (1) and inside the recess (5), and the rod end of the fastening knob (6) corresponds to the locking rod (8).

6. The oil well pressure measuring device as described in claim 1, characterized in that, The axis of the boss (14) coincides with the axis of the vertical tube (13), and the axis of the vertical tube (13) is perpendicular to the axis of the horizontal tube (11).

7. The oil well pressure measuring device as described in claim 1, characterized in that, The top surface of the boss (14) is provided with a through opening (16), the size of which is larger than that of the stud (10).

8. The oil well pressure measuring device as described in claim 1, characterized in that, A guide ring (20) is fixedly connected inside the sleeve opening of the protrusion (19), and an annular groove (15) is provided on the outer side wall of the boss (14). The guide ring (20) corresponds to the annular groove (15) and is rotatably connected.

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